"Gill Passman" wrote in message ...
Absolutely so here is the dilemma....on one hand it is good to feed FW
stuff from SW and SW good from FW from a pathogen and disease
prevention point of view...but on the other hand the nutritional requirements
differ....

There is no dilema!
Deep frozen stuff you buy for your fish
is pathogen free and safe to feed to your pets...
Unless you feed live foods you should be perfectly fine.
The best food for marine animals is marine in origin.